Black & White Ball: A De-Lovely Evening, Sept. 14, 5:15 p.m., 25 Powers Ct, Westport. Featuring Tony Award-winning Broadway star Kelli O’Hara and Sirius/XM radio personality Seth Rudetsky, cocktail party, dinner, live and silent auctions, and an after-party with dancing and live music by Cutting Edge Dueling Pianos. Tickets: $2,500-$350. Gala proceeds will benefit Westport Country Playhouse. Info: westportplayhouse.org/Gala2019.